Friday, December15, 2017 L-36.com


Marine Weather and Tides
Michigan City, IN

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:06AMSunset 4:19PM Friday December 15, 2017 5:47 PM CST (23:47 UTC) Moonrise 5:27AMMoonset 4:01PM Illumination 6% Phase: Waning Crescent; Moon at 27 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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LMZ046 Michigan City In To New Buffalo Mi- 333 Pm Est Fri Dec 15 2017
.small craft advisory in effect through late tonight...
Tonight..Southwest wind 10 to 20 knots. Gusts up to 25 knots. Cloudy. Chance of snow through midnight. Waves 3 to 5 feet subsiding to 2 to 4 feet.
Saturday..Southwest wind 10 to 15 knots backing south 5 to 10 knots in the afternoon. Partly cloudy in the morning then clearing. Waves 1 to 2 feet.
Saturday night..South wind 5 to 10 knots. Mostly clear. Waves around 1 foot.
Sunday..South wind 10 to 15 knots. Chance of rain in the afternoon. Waves 1 to 2 feet. The water temperature off michigan city is 37 degrees...and 39 degrees off st. Joseph.
LMZ046 Expires:201712160530;;944292 FZUS53 KIWX 152033 NSHIWX Nearshore Marine Forecast for Indiana National Weather Service Northern Indiana 333 PM EST Fri Dec 15 2017 For waters within five nautical miles of shore on Lake Michigan LMZ046-160530-

7 Day Forecast for Marine Location Near Michigan City city, IN
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location: 41.72, -86.89     debug


Area Discussion for - Northern Indiana, IN
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Fxus63 kiwx 152343
afdiwx
area forecast discussion
national weather service northern indiana
643 pm est Fri dec 15 2017

Synopsis
Issued at 231 pm est Fri dec 15 2017
a weak system will pass across the great lakes tonight bringing
scattered to numerous snow showers north of the toll road. Some
light snow accumulations of an inch or two are possible tonight,
especially across southern lower michigan where lake effect snow
showers are expected to be more numerous. Lows tonight will not be
as cold, ranging from the mid to upper 20s. Moderating trend
will continue into the weekend with highs in the 30s and 40s for
Saturday and Sunday.

Short term (tonight and Saturday)
issued at 231 pm est Fri dec 15 2017
earlier SW trough skirting through mi on the way out with light
snow flurries ending northeast.

Attention this period focused on secondary disturbance swinging
through SE on overnight and fairly robust low level warm advection
impinging into retreating low level baroclinic zone. Upstream sat
imagery along with 12z sounding diag show decent slug of h85-7 base
rh progged to skirt SE through base of on trough and should seed a
robust lake enhanced response through SRN mi this evening. Primary
question is how far to take mentionable pops especially in light of
how far morning snow showers progressed. Given some degree of
backing in low level flow will limit to north of highway 30 yet keep
close to prior update spreading pops a bit further south. Otherwise
favorable low centered dgz should yield mod snow for a time esp
north of a cassopolis to coldwater line with 1-2 inches there.

Warm sector expands nwd Sat with sunshine returning and warmer
although snow cover across NRN NE areas will retard more substantial
diurnal heating.

Long term (Saturday through Thursday)
issued at 231 pm est Fri dec 15 2017
persistent neg height anomaly over SE canada finally decays this
period with significant height anomalies developing through the wrn
us for a change. Downstream height rises are substantial given where
we have been for the last week and general west-swrly flow aloft
yields fairly mild weather especially mon-tue with well above normal
temps.

In this transition weak SRN stream SW trough minors out through the
oh valley late Sun with a decaying chance for rain. Blended pops
still appear a bit high but had trended lower and left for now given
as yet still high model based uncertainty relating to how fast this
wave shears out.

Thereafter pattern to turn colder toward next weekend as mean
troughing redevelops through hudson bay and potentially dicey as
perturbed SRN stream flow remains through the swrn us.

Aviation (for the 00z tafs through 00z Saturday evening)
issued at 637 pm est Fri dec 15 2017
disturbance in il was forcing some sporadic snow showers with a
dry sfc layer (5-10 degree TD depressions). As the disturbance
moves over the lake, returns may increase across the area with
the increased sfc moisture, but best indication would be sbn will
get some snow showers and not fwa. As a result, will include a
shsn for sbn early, but it will only be a quick pass through.

Cigs start out close to entering MVFR and appear to move towards
MVFR during the first few hours of this period at sbn as the
disturbance passes through.VFR conditions will return thereafter.

Finally, llws is possible, but looks too marginal for inclusion at
this point. Thereafter, the low level jet vacates the area to the
east and wind speeds will be less gusty on Saturday.

Iwx watches warnings advisories
In... None.

Mi... None.

Oh... None.

Lm... Small craft advisory until 5 am est Saturday for lmz043-046.

Synopsis... Marsili t
short term... T
long term... T
aviation... Roller
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MCYI3 - Michigan City, IN 1 mi47 min SW 26 G 28 33°F 24°F
BHRI3 - Burns Harbor, IN 15 mi36 min SW 8.9 G 21 32°F 1013.9 hPa
SJOM4 - St. Joseph, MI 34 mi47 min WSW 21 G 25 34°F 1012.9 hPa (+0.7)
CMTI2 - 9087044 - Calumet, IL 34 mi47 min SSW 7 G 13 33°F 1012.6 hPa (+0.4)23°F
JAKI2 36 mi107 min W 8.9 34°F
CNII2 39 mi32 min WSW 8 G 12 33°F 20°F
CHII2 - Chicago, IL 39 mi47 min WSW 13 G 19 34°F 22°F
OKSI2 41 mi107 min W 5.1 35°F
FSTI2 44 mi107 min SW 14 33°F

Wind History for Calumet Harbor, IL
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Last
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2 days
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W6
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G24

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Michigan City Municipal Airport, IN4 mi52 minWSW 10 G 1610.00 miOvercast32°F21°F64%1013.5 hPa
Valparaiso Porter County Municipal Airport, IN20 mi51 minWSW 910.00 miOvercast32°F21°F66%1014.6 hPa

Wind History from VPZ (wind in knots)
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Last 24hrSW7W4W5W5W5CalmSW3CalmSW6SW6SW8SW8SW10
G20
SW12W9W11W9W13W17W14
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W12W10SW9
1 day agoNW15
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N8E9E8E6CalmE5S3S5S3CalmSE5S5SW7S5W6
2 days agoW6W9W9SW7SW6SW5W5S7S5S6S7S8S7S11S11S12
G21
S15
G26
S16
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S14
G24
SW14
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SW16
G26
SW11W10W18
G27

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Northern Indiana, IN (18,4,5,8)
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Ground Weather Radar Station Northern Indiana, IN
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weather_mapweather_map weather_map

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.